X² = 144
I'm confused:(

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be